225 
States, compiled by the Editor of Richard’s Botanical Dictionary,” 
Albany, 1817. The author of this work is reported to have been 
Prof. Amos Eaton. Rafinesque’s review is printed in the “ Ameri- 
«an Monthly Magazine,” 1: 426-430, September, 1817, where 
among his criticisms he remarks, « He (Eaton) has not adopted the 
good genera Pte Si a . ete, 
Descriptions of new Leaves from the Cretaceous (Dakota Group) 
of Kansas.* 
By ArtTHuUR HOLLICK. 
(PLATES 236, 237.) 
During the past year one of the students f at Columbia Col- 
lege was engaged under my direction in overhauling and nam- 
ing the Dakota Group material in the Geological Museum, with 
instructions to put aside all specimens which could not be satis- 
factorily identified. I take pleasure in saying that the specimens 
now under consideration were the only ones, except a few frag- 
ments not capable of being satisfactory determined, which he 
found necessary to thus separate; also to state that they appar- 
ently represent three species and one variety new to the horizon, - 
and to give him credit for having recognized them as posessing 
characters different from those of any published plates or descrip- 
tions with which they could be compared. All are from the 
vicinity of Fort Harker, Kans. 
SASSAFRAS (ARALIOPSIS) Lesq. 
This subdivision of the genus Sassafras was made by Lesque- 
reux to contain a number of leaves which might be classed with 
either Sassafras or Aralia. Their systematic position is yet prob- 
lematic, but they are included under the former genus in his post- 
humous Flora of the Dakota Group, edited ae F, H. Knowlton. 
(Monog. xvii. U.S. G.S., 1891.) 
* Read by title at the meeting of the New York Academy of Sciences, February 
u, 1895. j 
" +Mr. Chas. R. Pollard, now Assistant Curator of the National Herbarium. 
